SG55399A1 - Timing synchronization in a receiver employing orthogonal frequency division multiplexing - Google Patents

Timing synchronization in a receiver employing orthogonal frequency division multiplexing

Info

Publication number: SG55399A1
Authority: SG; Singapore
Prior art keywords: frequency division; division multiplexing; orthogonal frequency; timing synchronization; receiver employing
Prior art date: 1996-10-31

Application number

SG1997003867A

Other languages

English (en)

Inventor

David Huw Davies

Jonathan Parker

Anthony Peter John Claydon

Original Assignee

Discovision Ass

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1996-10-31

Filing date

1997-10-25

Publication date

1998-12-21

1997-10-25 Application filed by Discovision Ass filed Critical Discovision Ass

1998-12-21 Publication of SG55399A1 publication Critical patent/SG55399A1/en

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
- H04L25/0214—Channel estimation of impulse response of a single coefficient
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2662—Symbol synchronisation
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2676—Blind, i.e. without using known symbols
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
- H04L5/026—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] using code division
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
Discrete Mathematics (AREA)
General Physics & Mathematics (AREA)
Mathematical Physics (AREA)
Synchronisation In Digital Transmission Systems (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Television Systems (AREA)

SG1997003867A 1996-10-31 1997-10-25 Timing synchronization in a receiver employing orthogonal frequency division multiplexing SG55399A1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GBGB9622728.5A GB9622728D0 (en)	1996-10-31	1996-10-31	Timing synchronization in a reciever employing orthogonal frequency division mutiplexing

Publications (1)

Publication Number	Publication Date
SG55399A1 true SG55399A1 (en)	1998-12-21

Family

ID=10802265

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SG1997003867A SG55399A1 (en)	1996-10-31	1997-10-25	Timing synchronization in a receiver employing orthogonal frequency division multiplexing

Country Status (13)

Country	Link
EP (1)	EP0840485B1 (fr)
JP (1)	JP4142758B2 (fr)
KR (1)	KR19980033375A (fr)
CN (1)	CN1181673A (fr)
AR (2)	AR008906A1 (fr)
AT (1)	ATE196218T1 (fr)
AU (1)	AU737361B2 (fr)
CA (1)	CA2199111A1 (fr)
DE (1)	DE69703016T2 (fr)
GB (2)	GB9622728D0 (fr)
ID (1)	ID19373A (fr)
IL (1)	IL122020A (fr)
SG (1)	SG55399A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100234329B1 (ko) *	1997-09-30	1999-12-15	윤종용	Ofdm 시스템 수신기의 fft 윈도우 위치 복원장치 및 그 방법_
US6167351A (en) *	1998-03-24	2000-12-26	Tektronix, Inc.	Period determination of a periodic signal
JP3850452B2 (ja) *	1998-08-24	2006-11-29	三菱電機株式会社	信号復調装置、およびこの信号復調装置における受信制御方法
KR100510637B1 (ko) *	1998-11-07	2006-02-28	엘지전자 주식회사	Dvb 시스템의 동기 검출 장치
GB2353680A (en) *	1999-08-27	2001-02-28	Mitsubishi Electric Inf Tech	OFDM frame synchronisation
US6967936B1 (en) *	2000-02-11	2005-11-22	Lucent Technologies Inc.	Uplink timing synchronization and access control for a multi-access wireless communication system
EP1128592A3 (fr) *	2000-02-23	2003-09-17	NTT DoCoMo, Inc.	AMRC multiporteuse et estimation de canal
US6920182B2 (en)	2001-01-09	2005-07-19	Microtune (Texas), L.P.	Delta-sigma modulator system and method
KR100425297B1 (ko) *	2001-06-11	2004-03-30	삼성전자주식회사	효율적인 심볼 타이밍 옵셋을 추정하는 ｏｆｄｍ 수신시스템 및 그 방법
CN100379212C (zh) *	2002-01-23	2008-04-02	华为技术有限公司	一种查找表电路的实现方法
US7623599B2 (en) *	2005-11-21	2009-11-24	Freescale Semiconductor, Inc.	Blind bandwidth detection for a sample stream
JP2008005389A (ja) *	2006-06-26	2008-01-10	Hitachi Ltd	通信方法および通信装置
US8284825B2 (en) *	2008-06-06	2012-10-09	Maxim Integrated Products, Inc.	Blind channel quality estimator
WO2011051448A2 (fr)	2009-10-30	2011-05-05	Bangor University	Procédé de synchronisation dans des systèmes de transmission par multiplexage fréquentiel optique
CN101902677B (zh) *	2010-06-23	2015-01-28	中兴通讯股份有限公司	音频检测装置及方法
KR101121086B1 (ko) *	2010-11-10	2012-03-16	충남대학교산학협력단	유니크 워드 기반 주파수 영역 등화기 기반 단일반송파 방식을 위한 채널 추정 기법
GB2489922A (en)	2011-04-06	2012-10-17	Univ Bangor	Synchronising optical OFDM signal with pattern of DC offset levels superimposed upon OFDM symbols
CN117826071B (zh) *	2024-03-06	2024-05-28	成都大公博创信息技术有限公司	基于中频触发实现多采集模块宽带校准的测向系统及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE69434306T2 (de) *	1993-01-20	2005-11-10	Koninklijke Philips Electronics N.V.	Verfahren zur Abtrennung einer Blockfrequenz aus einem blockformattierten Signal
GB2278257B (en) *	1993-05-05	1996-10-02	British Broadcasting Corp	Receiving equipment for digital transmissions
EP0982907B1 (fr) *	1994-05-09	2005-03-09	Victor Company Of Japan, Limited	Réglage d'une sousporteuse de référence pour la transmission multiporteuse
SE514986C2 (sv) *	1995-03-01	2001-05-28	Telia Ab	Metod och anordning för synkronisering vid OFDM-system
EP0772332A3 (fr) *	1995-11-02	2000-10-11	British Broadcasting Corporation	Synchronisation de signaux MDFO

1996
- 1996-10-31 GB GBGB9622728.5A patent/GB9622728D0/en active Pending
1997
- 1997-03-04 CA CA002199111A patent/CA2199111A1/fr not_active Abandoned
- 1997-09-26 GB GB9720550A patent/GB2318953A/en not_active Withdrawn
- 1997-10-03 EP EP97420183A patent/EP0840485B1/fr not_active Expired - Lifetime
- 1997-10-03 DE DE69703016T patent/DE69703016T2/de not_active Expired - Lifetime
- 1997-10-03 AT AT97420183T patent/ATE196218T1/de not_active IP Right Cessation
- 1997-10-03 AU AU39916/97A patent/AU737361B2/en not_active Ceased
- 1997-10-21 JP JP32511997A patent/JP4142758B2/ja not_active Expired - Lifetime
- 1997-10-22 CN CN97121150A patent/CN1181673A/zh active Pending
- 1997-10-24 IL IL12202097A patent/IL122020A/xx not_active IP Right Cessation
- 1997-10-25 SG SG1997003867A patent/SG55399A1/en unknown
- 1997-10-29 AR ARP970105030A patent/AR008906A1/es unknown
- 1997-10-30 AR ARP970105057A patent/AR008910A1/es unknown
- 1997-10-31 ID IDP973570A patent/ID19373A/id unknown
- 1997-10-31 KR KR1019970057007A patent/KR19980033375A/ko not_active Withdrawn

Also Published As

Publication number	Publication date
CA2199111A1 (fr)	1998-04-30
ID19373A (id)	1998-07-02
EP0840485A2 (fr)	1998-05-06
AR008906A1 (es)	2000-02-23
AU737361B2 (en)	2001-08-16
AU3991697A (en)	1998-05-07
CN1181673A (zh)	1998-05-13
EP0840485A3 (fr)	1998-06-10
DE69703016D1 (de)	2000-10-12
GB2318953A (en)	1998-05-06
KR19980033375A (ko)	1998-07-25
IL122020A (en)	2000-11-21
DE69703016T2 (de)	2001-04-05
EP0840485B1 (fr)	2000-09-06
IL122020A0 (en)	1998-03-10
GB9720550D0 (en)	1997-11-26
GB9622728D0 (en)	1997-01-08
JPH10150428A (ja)	1998-06-02
JP4142758B2 (ja)	2008-09-03
ATE196218T1 (de)	2000-09-15
AR008910A1 (es)	2000-02-23

Publication	Publication Date	Title
GB0009001D0 (en)	2000-05-31	Orthogonal frequency division multiplexing receiver
AU3991697A (en)	1998-05-07	Timing synchronization in a receiver employing orthogonal frequency division multiplexing
EP0983654A4 (fr)	2003-05-14	Systeme de multiplexage en frequence orthogonal, coherent, synchrone
GB9521739D0 (en)	1996-01-03	Decoding carriers encoded using orthogonal frequency division multiplexing
DE69833354D1 (de)	2006-04-13	Synchronisierung des Trägers in einem Mehrträgerempfänger
HU9701136D0 (en)	1997-08-28	Synchronizing method
IL181441A0 (en)	2007-07-04	A radio frequency receiver system
IL128579A (en)	2003-10-31	Transmission of digital signals by orthogonal frequency division multiplexing
FI963649L (fi)	1998-03-17	Symbolitahdistuksen ja näytteenottotaajuuden säätömenetelmä OFDM-modukoituja lähetyksiä vastaanottavassa laitteessa sekä menetelmän toteuttava laite
GB2325825B (en)	2001-09-12	Improvements to ofdm symbol synchronization
GB9607879D0 (en)	1996-06-19	Receiver and associated method for timing recovery and frequency estimation
GB9610498D0 (en)	1996-07-24	A frequency selective canceller arrangement
EP1343264A4 (fr)	2010-05-05	Recepteur en diversite, et procede pour la reception de signaux a multiplexage frequentiel orthogonal
GB9601348D0 (en)	1996-03-27	Clock synchronisation
GB2308278B (en)	2000-03-08	Receiver synchronisation using punctured preamble
EP0941594A4 (fr)	2002-08-14	Synchronisation de phase de porteuse par lecture arriere
GB9715105D0 (en)	1997-09-24	Multiple frequency transmitter
GB9512431D0 (en)	1995-08-23	Synchronization detecting circuit
FI962170A0 (fi)	1996-05-22	Vastaanotinhaaran valitseminen aikajakokanavoidussa vastaanottimessa pursketyypin perusteella
EP1333604A4 (fr)	2010-01-27	Recepteur en diversite et procede de reception d'un signal multiplex analogique orthogonal
IL120996A0 (en)	1997-11-20	Voice-channel frequency synchronization
EP1313242A4 (fr)	2009-11-25	Appareil de reception de signaux multiplexes a repartition orthogonale des frequences et procede de reception de signaux multiplexes a repartition orthogonale des frequences
AU133410S (en)	1998-04-03	A mug
GB2312357B (en)	2000-02-09	Reception timing control in a TDM receiver
ZA979449B (en)	1998-05-12	Multi-frame synchronization for parallel channel transmissions.